/* =========================================================================
   Self-Improving Company · composite · "Editorial Luxury" theme
   Pure CSS, no preprocessor, no build step.

   Design language: warm paper light mode / deep espresso dark mode,
   high-contrast Fraunces display serif, Plus Jakarta Sans body, a single
   ember accent, film-grain texture, heavy whitespace, custom-ease motion,
   double-bezel cards and scroll-reveal. (high-end-visual-design, translated
   to vanilla CSS custom properties — zero build.)

   Token names mirror Material Design 3 so the composite engine's component
   CSS keeps working, but the values are an editorial palette, not MD3 purple.
   ========================================================================= */

/* ---------- LIGHT (default): warm paper + espresso ink + ember ---------- */
:root,
[data-theme="light"] {
  --primary:               #A8431B;   /* ember */
  --on-primary:            #FFF8F1;
  --primary-container:     #F3E2D2;
  --on-primary-container:  #4A1C08;
  --secondary:             #6B5E4C;
  --secondary-container:   #EBE0CF;
  --on-secondary-container:#332B1E;
  --tertiary:              #4F5B49;   /* muted sage, sparingly */
  --tertiary-container:    #DDE6D4;

  --background:            #F6F1E8;   /* warm paper */
  --on-background:         #211C15;
  --surface:               #F6F1E8;
  --surface-container:     #FCF8F1;   /* raised card */
  --surface-container-high:#FFFDF8;
  --surface-variant:       #ECE3D4;
  --on-surface:            #221D16;
  --on-surface-variant:    #6B6051;

  --outline:               #968A77;
  --outline-variant:       rgba(34, 29, 22, .12);
  --error:                 #9B2C20;
  --shadow:                rgba(60, 44, 26, .16);

  --hair:                  rgba(34, 29, 22, .10);
  --sheen:                 rgba(255, 255, 255, .55);
  --grain-opacity:         .04;

  --elev-1: 0 1px 2px rgba(60,44,26,.06), 0 6px 16px -10px rgba(60,44,26,.18);
  --elev-2: 0 2px 6px rgba(60,44,26,.08), 0 18px 40px -18px rgba(60,44,26,.30);
  --elev-3: 0 8px 24px rgba(60,44,26,.12), 0 40px 80px -30px rgba(60,44,26,.40);

  --radius-sm: 10px;
  --radius:    18px;
  --radius-lg: 30px;

  --font-display: "Fraunces", "Noto Serif TC", Georgia, "Times New Roman", serif;
  --font-body:    "Plus Jakarta Sans", "Noto Sans TC", system-ui, -apple-system, sans-serif;
  --ease:     cubic-bezier(.22, .68, 0, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* ---------- DARK: deep espresso + warm light ink + lifted ember ---------- */
[data-theme="dark"] {
  --primary:               #E8945E;   /* lifted ember */
  --on-primary:            #2A1206;
  --primary-container:     #5A2A12;
  --on-primary-container:  #FBE3CF;
  --secondary:             #D8C9B2;
  --secondary-container:   #3A3225;
  --on-secondary-container:#EFE4D2;
  --tertiary:              #AEBCA1;
  --tertiary-container:    #2E3A28;

  --background:            #15110C;   /* near-black espresso */
  --on-background:         #ECE3D6;
  --surface:               #15110C;
  --surface-container:     #1E1810;   /* raised card */
  --surface-container-high:#272016;
  --surface-variant:       #2A2318;
  --on-surface:            #ECE3D6;
  --on-surface-variant:    #B0A48F;

  --outline:               #897C68;
  --outline-variant:       rgba(236, 227, 214, .14);
  --error:                 #F2B8B0;
  --shadow:                rgba(0, 0, 0, .5);

  --hair:                  rgba(236, 227, 214, .12);
  --sheen:                 rgba(255, 255, 255, .05);
  --grain-opacity:         .05;

  --elev-1: 0 1px 2px rgba(0,0,0,.4), 0 8px 20px -12px rgba(0,0,0,.6);
  --elev-2: 0 2px 8px rgba(0,0,0,.45), 0 24px 50px -20px rgba(0,0,0,.7);
  --elev-3: 0 10px 30px rgba(0,0,0,.5), 0 50px 90px -30px rgba(0,0,0,.8);
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  background: var(--background);
  color: var(--on-background);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .4s var(--ease), color .4s var(--ease);
  overflow-x: hidden;
}
/* warm radial wash behind the page */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 50% at 78% -8%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 70%),
    radial-gradient(50% 45% at 6% 4%, color-mix(in srgb, var(--tertiary) 12%, transparent), transparent 70%);
}
/* film-grain texture overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
a { color: inherit; text-decoration: none; }
::selection { background: color-mix(in srgb, var(--primary) 28%, transparent); }
.material-symbols-rounded {
  font-variation-settings: "FILL" 0, "wght" 300, "GRAD" 0, "opsz" 24;
  line-height: 1;
  user-select: none;
}

/* ---------- App bar ---------- */
.appbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--background) 80%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--hair);
}
.appbar__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: -.01em;
  color: var(--on-surface);
  min-width: 0;
  overflow: hidden;
}
.brand__logo {
  color: var(--primary);
  flex: 0 0 auto;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  font-size: 26px;
}
.brand__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.appbar__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

/* ---------- Icon / pill buttons ---------- */
.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--on-surface-variant);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  font: inherit;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
}
.icon-btn:hover { background: var(--surface-variant); color: var(--on-surface); }
.icon-btn:active { transform: scale(.96); }
.icon-btn .material-symbols-rounded { font-size: 21px; }
.icon-btn__txt { font-size: .82rem; font-weight: 600; letter-spacing: .01em; }
.gh-link {
  border-color: var(--hair);
}
.gh-link .material-symbols-rounded { color: var(--primary); }

/* ---------- Sticky section nav (scrollspy) ---------- */
.sectionnav {
  position: sticky;
  top: 57px;
  z-index: 25;
  background: color-mix(in srgb, var(--background) 82%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--hair);
}
.sectionnav__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.sectionnav__inner::-webkit-scrollbar { display: none; }
.navpill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  padding: 7px 15px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  border: 1px solid var(--hair);
  background: color-mix(in srgb, var(--surface-container) 50%, transparent);
  white-space: nowrap;
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease),
              border-color .3s var(--ease), transform .3s var(--ease);
}
.navpill .material-symbols-rounded { font-size: 17px; opacity: .8; }
.navpill:hover { color: var(--on-surface); transform: translateY(-1px); border-color: var(--outline-variant); }
.navpill--active {
  background: var(--on-surface);
  color: var(--background);
  border-color: var(--on-surface);
}
.navpill--active .material-symbols-rounded { opacity: 1; }

/* ---------- Section scaffolding ---------- */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 92px 24px 12px;
  scroll-margin-top: 124px;
}
.section-head { margin-bottom: 34px; position: relative; }
.section-head::before {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  margin-bottom: 20px;
  border-radius: 2px;
  background: var(--primary);
}
.section-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -.018em;
  color: var(--on-surface);
}
.section-head__sub {
  margin: 0;
  max-width: 60ch;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--on-surface-variant);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  filter: blur(4px);
  transition: opacity .8s var(--ease-out),
              transform .8s var(--ease-out),
              filter .8s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; filter: blur(0); }

/* ---------- HERO ---------- */
.section--hero {
  padding-top: 64px;
  padding-bottom: 8px;
}
.hero__head { margin-bottom: 30px; }
.hero__head::before { display: none; }
.hero__eyebrow {
  display: inline-block;
  margin-bottom: 22px;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--outline-variant);
  background: color-mix(in srgb, var(--primary) 8%, transparent);
  color: var(--primary);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.section--hero h2 {
  margin: 0;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.03em;
  color: var(--on-surface);
}
.hero__sub {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.55;
  color: var(--on-surface-variant);
}
.hero__lead {
  margin: 40px 0 8px;
  padding: 28px 30px 26px;
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--surface-container);
  border: 1px solid var(--hair);
  box-shadow: var(--elev-1), inset 0 1px 0 var(--sheen);
  max-width: 760px;
}
.hero__lead-mark {
  font-size: 34px;
  color: var(--primary);
  opacity: .7;
  font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 40;
}
.hero__lead blockquote {
  margin: 6px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--on-surface);
}
.hero__lead figcaption {
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--on-surface-variant);
}
.hero__meta {
  margin: 24px 0 0;
  font-weight: 600;
  color: var(--on-surface-variant);
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
  margin-top: 44px;
}
.hero__stat {
  background: var(--surface-container);
  border-radius: var(--radius);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
}
.hero__stat-num {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  color: var(--primary);
  line-height: 1;
}
.hero__stat-value {
  font-size: 2.6rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.hero__stat-aff { font-size: 1.5rem; font-weight: 600; }
.hero__stat-label {
  font-size: .86rem;
  line-height: 1.45;
  color: var(--on-surface-variant);
}

/* ---------- CARDS grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  background: var(--surface-container);
  border-radius: var(--radius);
  padding: 26px 24px 22px;
  cursor: pointer;
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
  transition: box-shadow .45s var(--ease), transform .45s var(--ease),
              border-color .45s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}
.card::before {            /* ember top rail, revealed on hover */
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.card:hover,
.card:focus-visible {
  box-shadow: var(--elev-2), inset 0 1px 0 var(--sheen);
  transform: translateY(-4px);
  border-color: var(--outline-variant);
  outline: none;
}
.card:hover::before,
.card:focus-visible::before { transform: scaleX(1); }
.card:active { transform: translateY(-2px) scale(.992); }
.card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--on-surface);
}
.card__summary {
  margin: 0;
  font-size: .96rem;
  line-height: 1.6;
  color: var(--on-surface-variant);
}
.card__tags {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.tag {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--on-surface-variant);
  background: var(--surface-variant);
  padding: 4px 10px;
  border-radius: 999px;
}
.card__more {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--surface-variant);
  color: var(--on-surface-variant);
  opacity: 0;
  transform: translate(4px, -2px);
  transition: opacity .4s var(--ease), transform .4s var(--ease),
              background .4s var(--ease), color .4s var(--ease);
}
.card__more .material-symbols-rounded { font-size: 19px; }
.card:hover .card__more,
.card:focus-visible .card__more {
  opacity: 1;
  transform: none;
  background: var(--primary);
  color: var(--on-primary);
}

/* ---------- TIMELINE ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--primary), var(--outline-variant));
}
.tl-item {
  position: relative;
  padding: 0 0 22px 42px;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: 0;
  top: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--background);
  border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 16%, transparent);
}
.tl-card {
  background: var(--surface-container);
  border-radius: var(--radius);
  padding: 18px 22px;
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.tl-card:hover { transform: translateX(4px); box-shadow: var(--elev-1), inset 0 1px 0 var(--sheen); }
.tl-date {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--primary);
}
.tl-title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--on-surface);
}
.tl-body { margin: 0; font-size: .95rem; line-height: 1.6; color: var(--on-surface-variant); }

/* ---------- BARS (inline SVG; kept for completeness) ---------- */
.chart-card {
  margin: 0;
  background: var(--surface-container);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
}
.chart-wrap { width: 100%; }
.chart-wrap svg { width: 100%; height: auto; display: block; }
.bar-rect { fill: var(--primary); transition: fill .2s var(--ease); }
.bar-rect:hover { fill: var(--tertiary); }
.bar-value { fill: var(--on-surface); font-size: 13px; font-weight: 700; font-family: var(--font-body); }
.bar-label { fill: var(--on-surface-variant); font-size: 12px; font-family: var(--font-body); }
.axis-line { stroke: var(--outline-variant); stroke-width: 1.5; }

/* ---------- ACCORDION ---------- */
.accordion { display: flex; flex-direction: column; gap: 14px; }
.acc-item {
  background: var(--surface-container);
  border-radius: var(--radius);
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
  overflow: hidden;
  transition: border-color .3s var(--ease);
}
.acc-item[open] { border-color: var(--outline-variant); }
.acc-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--on-surface);
  list-style: none;
}
.acc-q::-webkit-details-marker { display: none; }
.acc-chevron {
  flex: 0 0 auto;
  transition: transform .35s var(--ease);
  color: var(--primary);
}
.acc-item[open] .acc-chevron { transform: rotate(180deg); }
.acc-a {
  padding: 0 24px 22px;
  font-size: .98rem;
  line-height: 1.72;
  color: var(--on-surface-variant);
}

/* ---------- QUOTES ---------- */
.quotes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.quote-card {
  margin: 0;
  position: relative;
  background: var(--surface-container);
  border-radius: var(--radius-lg);
  padding: 30px 26px 24px;
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.quote-card:hover { transform: translateY(-4px); box-shadow: var(--elev-2), inset 0 1px 0 var(--sheen); }
.quote-mark {
  font-size: 40px;
  color: var(--primary);
  opacity: .55;
  font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 40;
}
.quote-card blockquote {
  margin: 8px 0 16px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--on-surface);
}
.quote-by { font-size: .85rem; font-weight: 600; letter-spacing: .02em; color: var(--on-surface-variant); }

/* ---------- PROSE ---------- */
.prose {
  max-width: 70ch;
  font-size: 1.08rem;
  color: var(--on-surface-variant);
}
.prose h3 {
  font-family: var(--font-display);
  color: var(--on-surface);
  font-size: 1.34rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin: 32px 0 12px;
}
.prose p { line-height: 1.78; margin: 0 0 18px; }
.prose ul { margin: 0 0 18px; padding-left: 24px; line-height: 1.78; }
.prose li { margin-bottom: 8px; }
.prose li::marker { color: var(--primary); }

/* ---------- SOURCES ---------- */
.sources__note {
  margin: -14px 0 26px;
  max-width: 64ch;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--on-surface-variant);
  padding: 14px 18px;
  border-left: 3px solid var(--primary);
  background: color-mix(in srgb, var(--primary) 6%, transparent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.sources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.src-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--surface-container);
  border-radius: var(--radius);
  padding: 22px;
  border: 1px solid var(--hair);
  box-shadow: inset 0 1px 0 var(--sheen);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease),
              border-color .4s var(--ease);
}
.src-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--elev-2), inset 0 1px 0 var(--sheen);
  border-color: var(--outline-variant);
}
.src-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.src-kind {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
}
.src-card__go {
  font-size: 19px;
  color: var(--on-surface-variant);
  transition: transform .4s var(--ease), color .4s var(--ease);
}
.src-card:hover .src-card__go { transform: translate(3px, -3px); color: var(--primary); }
.src-card__title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--on-surface);
}
.src-by { font-size: .84rem; font-weight: 600; color: var(--on-surface-variant); }

/* ---------- CTA ---------- */
.section--cta { padding-bottom: 32px; }
.cta-card {
  position: relative;
  overflow: hidden;
  background: var(--on-surface);
  color: var(--background);
  border-radius: var(--radius-lg);
  padding: 64px 36px;
  text-align: center;
}
.cta-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(60% 80% at 80% 0%, color-mix(in srgb, var(--primary) 38%, transparent), transparent 60%);
}
.cta-card > * { position: relative; }
.cta-card h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.1;
}
.cta-card p {
  margin: 0 auto 28px;
  max-width: 52ch;
  color: color-mix(in srgb, var(--background) 78%, var(--on-surface-variant));
  font-size: 1.05rem;
  line-height: 1.6;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: var(--on-primary);
  padding: 13px 16px 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: .01em;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.cta-btn__icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--on-primary) 20%, transparent);
  transition: transform .4s var(--ease);
}
.cta-btn__icon .material-symbols-rounded { font-size: 19px; }
.cta-btn:hover { transform: translateY(-2px); box-shadow: var(--elev-2); }
.cta-btn:hover .cta-btn__icon { transform: translateX(3px); }
.cta-btn:active { transform: translateY(0) scale(.98); }

/* ---------- Dialog ---------- */
.dialog {
  border: none;
  border-radius: var(--radius-lg);
  background: var(--surface-container-high);
  color: var(--on-surface);
  max-width: 620px;
  width: calc(100% - 32px);
  padding: 0;
  box-shadow: var(--elev-3);
  border: 1px solid var(--hair);
}
.dialog::backdrop { background: rgba(20, 14, 8, .55); backdrop-filter: blur(3px); }
.dialog__bar {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  position: sticky;
  top: 0;
  background: var(--surface-container-high);
  z-index: 1;
}
.dialog__spacer { flex: 1; }
.dialog__body { padding: 8px 32px 34px; }
.dialog__body h2 {
  margin-top: 0;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -.02em;
  color: var(--on-surface);
}
.dialog__body p { color: var(--on-surface-variant); line-height: 1.75; font-size: 1.02rem; }
.dialog__body .card__tags { margin: 0 0 18px; }

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  padding: 56px 24px 64px;
  margin-top: 48px;
  color: var(--on-surface-variant);
  font-size: .86rem;
  border-top: 1px solid var(--hair);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding: 72px 20px 8px; }
  .grid,
  .quotes-grid,
  .sources-grid { grid-template-columns: 1fr; }
  .appbar__inner { padding: 12px 18px; }
  .gh-link .icon-btn__txt { display: none; }
}
@media (max-width: 420px) {
  .appbar__inner,
  .sectionnav__inner,
  .section { padding-left: 16px; padding-right: 16px; }
  .section { padding-top: 60px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__lead { padding: 22px 20px; }
  .cta-card { padding: 44px 22px; }
}

/* ---------- Respect reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
}